Main features of Miocene flora in the South of the Netherlands, according to spore and pollen analysis and fossil wood.
Reference:
Jonker,F.P. (1962)
Main features of Miocene flora in the South of the Netherlands, according to spore and pollen analysis and fossil wood. International Palynological Conference,Abstracts,Tucson,Arizonas
Vol. 4 # 2 P. 355- 355